VARIABLE-CYCLE CORRELATION-TYPE DETECTION APPARATUS AND VARIABLE-CYCLE CORRELATION-TYPE SIGNAL DETECTION APPARATUS

摘要

PURPOSE: To provide a simple apparatus with only one circuit for generating a prom ised waveform by a method wherein a transmitted signal is obtained on the basis of a signal in which a promised waveform signal has been delayed via one delay passage provider with a prescribed fixed length. ;CONSTITUTION: A variable cycle circuit 1X gives to a promised waveform circuit 13X a variable cycle signal 1XA by means of a pulse signal having a variable cycle TE. The circuit 13X gives a signal having a prescribed waveform as a promised wave signal 13XA to a multiplication circuit 11 and a fixed delay passage 12X. The delay passage 12X gives to a transmission circuit 2X a signal in which the signal 13XA has been delayed via one delay passage provided with a prescribed fixed length. The circuit 2X gives a power-amplified signal as a transmission signal 2XA to a transmitting antenna 3. The signal 13XA which is given to the circuit 11 appears as a promised waveform at each variable cycle TE. Then the cycle TW becomes twice as much as a first fixed cycle T, a correlation-detection processing operation and a pulse- compression processing operation which correspond to the cycle T are completed.;COPYRIGHT: (C)1993,JPO&Japio